CN216213905U - Lithium ion battery and battery module - Google Patents

Lithium ion battery and battery module Download PDF

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Publication number
CN216213905U
CN216213905U CN202122385060.8U CN202122385060U CN216213905U CN 216213905 U CN216213905 U CN 216213905U CN 202122385060 U CN202122385060 U CN 202122385060U CN 216213905 U CN216213905 U CN 216213905U
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arc
battery
baffle
lithium ion
shaped
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臧世伟
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Chongqing Jinmei New Material Technology Co Ltd
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Chongqing Jinmei New Material Technology Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model provides a lithium ion battery and a battery module, wherein the lithium ion battery comprises: the upper inner surface and the lower inner surface of the inside of the lithium ion battery shell are respectively provided with a first elastic supporting seat and a second elastic supporting seat, each fixing groove comprises a U-shaped groove and fixing plates arranged at two ends of the U-shaped groove, the fixing grooves are fixed inside the battery shell through the fixing plates at two sides, the outer surface of each U-shaped groove is abutted to the first elastic supporting seat, each arc-shaped plate buffer plate comprises an arc-shaped part and flat plates arranged at two sides of the arc-shaped part, the arc-shaped buffer plates are connected with the inner surface of the battery shell through the flat plates, the arc-shaped parts and the inner surface of the battery shell form a hollow space, and the second elastic supporting seats are abutted to the arc-shaped parts; the battery cell structure is arranged between the arc-shaped plate buffer plate and the fixing groove. The utility model can provide enough expansion space for the lithium ion battery, prevent the lithium ion battery from falling and being damaged, and reduce the weight of the battery module.

Description

Lithium ion battery and battery module
Technical Field
The utility model belongs to the technical field of new energy automobiles, and particularly relates to a lithium ion battery and a battery module.
Background
Lithium ion battery is comparatively clean and clean for traditional fossil energy, and consequently, lithium ion battery has also met development opportunity unprecedented, but, at present lithium ion battery all can appear explosion and cause such as fire in production and use, and the leading cause lies in production or use in-process lithium ion battery, in case fall or the inside gas emergence of lithium ion battery expands, current lithium ion battery design does not give the expanded space of lithium ion battery to the emergence explosion.
Based on the above, the utility model designs a lithium ion battery and a battery module to solve the existing problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a lithium ion battery and a battery module, so as to solve the problems in the background art.
To achieve the above object, in a first aspect, an embodiment of the present invention provides a lithium ion battery, including: a battery shell, a cell structure, an arc buffer plate and a fixed groove,
the upper and lower inner surfaces in the battery shell are respectively provided with a first elastic supporting seat and a second elastic supporting seat, the fixing groove comprises a U-shaped groove and fixing plates arranged at two ends of the U-shaped groove, the fixing groove penetrates through the battery shell through the fixing plates at two sides to fix the U-shaped groove in the battery shell, the outer surface of the U-shaped groove is abutted against the first elastic supporting seat,
the arc-shaped buffer plate comprises an arc-shaped part and flat plates arranged on two sides of the arc-shaped part, and the arc-shaped buffer plate is connected with the inner surface of the battery shell through the flat plates; the arc-shaped part and the inner surface of the battery shell form a hollow space, and the second elastic supporting seat is abutted against the arc-shaped part;
the battery cell structure is arranged between the arc-shaped buffer plate and the fixing groove.
In some possible embodiments, the arc-shaped buffer plate is provided with a plurality of elongated holes and a plurality of circular holes, the plurality of elongated holes are distributed on the arc-shaped portion in an array, and the plurality of circular holes are distributed on the flat plates on two sides of the arc-shaped buffer plate in an array.
In some possible embodiments, the flat plates on both sides of the arc-shaped buffer plate are connected with the battery shell through welding, screwing or clamping.
In some possible embodiments, the arc-shaped buffer plate is of a spring plate structure.
In some possible embodiments, the first elastic supporting seat and the second elastic supporting seat are respectively connected to the upper inner surface and the lower inner surface of the battery shell in a welding, bonding, clamping and screwing manner;
the first elastic supporting seat and the second elastic supporting seat are both of a cubic structure; alternatively, the first and second electrodes may be,
the first elastic supporting seat and the second elastic supporting seat are both springs; alternatively, the first and second electrodes may be,
the first elastic supporting seat and the second elastic supporting seat respectively comprise a cubic structure and a spring, and the spring is sleeved on the outer side of the cubic structure.
In a second aspect, the present invention provides a battery module including: a frame structure, and a plurality of lithium ion batteries of any one of the above arranged in the frame structure;
the frame structure is formed by enclosing a first baffle, a second baffle, a third baffle and a fourth baffle;
the first baffle and the second baffle are oppositely arranged;
a first closing plate and a second closing plate are hinged to one ends, far away from the fourth baffle, of the first baffle and the second baffle respectively, and the first closing plate and the second closing plate are closed to form a third baffle;
the fourth baffle and the third baffle are arranged oppositely;
the first baffle with be provided with a plurality of first bar cell bodies and a plurality of second bar cell body on the second baffle respectively, with every fixed plate among the lithium ion battery passes corresponding first bar cell body and second bar cell body in order to pack this lithium ion battery the frame structure, wherein, the length of a plurality of first bar cell bodies and a plurality of second bar cell body equals with the length of fixed plate.
In some possible embodiments, the first baffle and the second baffle are respectively provided with a first supporting plate and a second supporting plate, the first supporting plate and the second supporting plate respectively form an L shape with the first baffle and the second baffle, and the plurality of lithium ion batteries are supported by the first supporting plate and the second supporting plate.
In some possible embodiments, the plurality of lithium ion batteries are fixedly mounted in the frame structure through a fixing plate on the lithium ion battery, and the plurality of lithium ion batteries are fixedly connected through a through hole on the fixing plate by using a bolt.
In some possible embodiments, the first baffle and the second baffle are respectively provided with a plurality of first holes and a plurality of second holes.
In some possible embodiments, the first baffle and the second baffle have a distance therebetween, such that the bottom of the frame structure is a semi-enclosed structure.
The technical scheme has the following beneficial effects:
according to the lithium ion battery provided by the utility model, the upper and lower inner surfaces inside the lithium ion battery shell are respectively provided with the first elastic supporting seat and the second elastic supporting seat, the fixed groove comprises a U-shaped groove and fixed plates arranged at two ends of the U-shaped groove, the fixed groove is fixed inside the battery shell through the fixed plates at two sides, the outer surface of the U-shaped groove is abutted against the first elastic supporting seat, the arc-shaped plate buffer plate comprises an arc-shaped part and flat plates arranged at two sides of the arc-shaped part, the arc-shaped buffer plate is connected with the inner surface of the battery shell through the flat plates, the arc-shaped part and the inner surface of the battery shell form a hollow space, and the second elastic supporting seat is abutted against the arc-shaped part; the battery cell structure is arranged between the arc-shaped plate buffer plate and the fixing groove. Based on above-mentioned structural design, when electric core structure is because the effect of power extrusion arc part, arc part is to battery case internal surface compression for arc part leans on one side and the second elastic support seat in the battery case to contact each other, thereby makes arc part's surface be the plane, when lithium ion battery takes place to fall or lithium ion battery takes place to expand because producing gas, can give lithium ion battery enough expanded space, can also prevent that lithium ion battery from falling the damage or explosion. On the other hand, the battery module that this embodiment provided through set up first closed plate and second closed plate on frame structure, has both improved battery module's heat dispersion, still great weight that has alleviateed frame structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of an electric lithium ion battery according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a housing structure of an electric lithium ion battery according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an arc-shaped buffer plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fixing groove according to an embodiment of the present invention;
fig. 5A is a schematic overall plan view of a battery module according to an embodiment of the utility model;
fig. 5B is an overall perspective view of the battery module according to the embodiment of the present invention;
fig. 5C is an overall rear view of the battery module according to the embodiment of the present invention;
FIG. 6 is a schematic structural view of a closure panel of an embodiment of the present invention;
fig. 7 is a schematic structural diagram of the first baffle and the second baffle according to the embodiment of the utility model.
The reference numbers illustrate:
10. the battery comprises a lithium ion battery, 1, a battery shell, 2, a battery cell structure, 3, an arc-shaped buffer plate, 4, a fixing groove, 11, a first elastic supporting seat, 12, a second elastic supporting seat, 41, a U-shaped groove, 42, a fixing plate, 43, a through hole, 31, an arc-shaped part, 32, a flat plate, 311, a strip-shaped hole, 321, a plurality of circular holes, 20, a battery module, 5, a frame structure, 51, a first baffle, 52, a second baffle, 53, a third baffle, 54 and a fourth baffle; 531. the first closed plate 532, the second closed plate 511, the first strip-shaped groove body 521, the second strip-shaped groove body 512, the first supporting plate 522, the second supporting plate 513, the first hole 523 and the second hole.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Example one
As shown in fig. 1, fig. 2, fig. 3, and fig. 4, an embodiment of the present invention provides a lithium ion battery 10, where the lithium ion battery 10 includes a battery case 1, a cell structure 2, an arc buffer plate 3, and a fixing groove 4, where upper and lower inner surfaces of the inside of the battery case 1 are respectively provided with a first elastic support 11 and a second elastic support 12, and the fixing groove 4 is installed in the inside of the battery case 1.
As shown in fig. 4, the fixing groove 4 includes a U-shaped groove 41 and fixing plates 42 provided at both ends of the U-shaped groove 41, the fixing groove 4 is fixed inside the battery case 1 by the fixing plates 42 at both sides, and the outer surface of the U-shaped groove 41 abuts against the first elastic support base 11. When the battery shell 1 is extruded by external force, the first elastic supporting seat 11 compresses the fixing groove 4, so that sufficient extrusion space is provided for the battery shell 1, and the damage of the battery core structure 2 caused by the extrusion of the external force can be avoided.
As shown in fig. 3, the arc-shaped buffer plate 3 includes an arc-shaped portion 31 and flat plates 32 disposed at both sides of the arc-shaped portion 31, the arc-shaped portion 31 and the flat plates 32 at both sides may be integrally formed, or the flat plates 32 may be connected to both sides of the arc-shaped portion 31, respectively, and the arc-shaped buffer plate 3 is connected to the inner surface of the battery case 1 through the flat plates 32; the inside of the arc-shaped part 31 of the arc-shaped buffer plate 3 extends towards the inside of the battery shell 1, the arc-shaped part 31 and the inner surface of the battery shell 1 form a hollow space, and the second elastic supporting seat 12 is positioned in the hollow space and is abutted against the arc-shaped part 31; the cell structure 2 is arranged between the arc-shaped plate buffer plate 3 and the fixing groove 4.
According to the embodiment of the utility model, when the electric core structure 2 presses the arc-shaped part 31 due to the action of force, the arc-shaped part 31 is compressed towards the inner surface of the battery shell 1, so that one surface of the arc-shaped part 31, which is close to the inner side of the battery shell 1, is in contact with the second elastic supporting seat 12, and the surface of the arc-shaped part 31 is a plane, so that when the lithium ion battery 10 falls or the lithium ion battery 10 expands due to gas generation, a sufficient expansion space can be provided for the lithium ion battery 10, and the lithium ion battery 10 can be prevented from falling, damaging or exploding.
In some embodiments, the first elastic support seat 11 and the second elastic support seat 12 are both of a cubic structure, the first elastic support seat 11 abuts against the U-shaped groove 41 in the fixing groove 4, the height of the second elastic support seat 12 abuts against the arc-shaped portion 31 of the arc-shaped buffer plate 3, when the cell structure 2 presses the arc-shaped portion 31 due to the force, the arc-shaped portion 31 compresses toward the inner surface of the battery case 1, so that one surface of the arc-shaped portion 31, which is close to the inside of the battery case 1, contacts with the elastic support seat 12, so that the surface of the top end of the arc-shaped portion 31 is a plane, and the expansion space of the lithium ion battery 10 is increased.
In some embodiments, the first elastic supporting seat 11 and the second elastic supporting seat 12 are respectively connected to the upper inner surface and the lower inner surface of the battery shell 1 through welding, bonding, clamping or screwing;
in some embodiments, the first elastic supporting seat 11 and the second elastic supporting seat 12 are both cubic structures, or the first elastic supporting seat 11 and the second elastic supporting seat 12 are both springs; or the first elastic supporting seat 11 and the second elastic supporting seat 12 both comprise a cubic structure and a spring, wherein the spring is sleeved outside the cubic structure, so that the elasticity of the elastic supporting column can be further improved.
As shown in fig. 3, in some embodiments, a plurality of holes are disposed on the arc buffer plate 3, and the shape and size of the holes can be arbitrarily set according to actual situations, for example, a plurality of elongated holes 311 and a plurality of circular holes 321, the plurality of elongated holes 311 are disposed on the arc portion 31, and the plurality of circular holes 321 are disposed on the flat plates 32 on both sides of the arc buffer plate 3, so that by disposing the plurality of elongated holes 311 and the plurality of circular holes 321, not only the elasticity and the weight of the arc buffer plate 3 can be improved, but also the heat dissipation performance of the lithium ion battery can be improved.
In some embodiments, the flat plates 32 on both sides of the arc buffer plate 3 are connected to the battery case 1 by welding, screwing or clipping.
In some embodiments, the arc buffer board 3 is a spring leaf structure, and through the arrangement of the elastic sheet, when the lithium ion battery 10 expands, the battery cell accommodating cavity can be expanded all around through the elasticity of the elastic sheet, so that a sufficient expansion space is provided.
In some embodiments, the fixing plate 42 is provided with through holes 43 for fixedly connecting the plurality of lithium ion batteries 10 together by screws and bolts, so as to improve the stability of the battery module 20.
Example two
As shown in fig. 5A, 5B, 5C, 6 and 7, a battery module 20 according to an embodiment of the present invention includes: a frame structure 5, and a plurality of lithium ion batteries 10 disposed in the frame structure 5; the frame structure 5 is formed by enclosing a first baffle 51, a second baffle 52, a third baffle 53 and a fourth baffle 54; the first baffle 51 and the second baffle 52 are oppositely arranged, one ends of the first baffle 51 and the second baffle 52 far away from the fourth baffle 54 are respectively hinged with a first closing plate 531 and a second closing plate 532, the first closing plate 531 and the second closing plate 532 form a third baffle 53 after being closed, and the fourth baffle 54 and the third baffle 53 are oppositely arranged. By providing the third baffle 53 formed by the first and second closure panels 531, 532, the weight of the frame structure 5 is greatly reduced.
In some embodiments, the first baffle 51 and the second baffle 52 are respectively provided with a plurality of first strip-shaped grooves 511 and a plurality of second strip-shaped grooves 521, and the fixing plate 42 of each lithium ion battery 10 passes through the corresponding first strip-shaped grooves 511 and second strip-shaped grooves 521 to mount the lithium ion battery 10 into the frame structure 5, wherein the lengths of the plurality of first strip-shaped grooves 511 and the plurality of second strip-shaped grooves 521 are equal to the length of the fixing plate 42, and the first strip-shaped grooves 511 and the second strip-shaped grooves 521 facilitate the detachment and installation of the plurality of lithium ion batteries 10.
In some embodiments, the first and second baffles 51 and 52 are provided with first and second support plates 512 and 522, respectively, the first and second support plates 512 and 522 respectively constitute an L shape with the first and second baffles 51 and 52, respectively, and the plurality of lithium ion batteries 10 are supported by the first and second support plates 512 and 522. By providing the first and second support plates 512 and 522 to support the plurality of lithium ion batteries 10, the stability of the battery module is improved.
In some embodiments, each lithium ion battery 10 is fixedly installed in the frame structure 5 through a fixing plate 42 on the lithium ion battery 10, a screw rod sequentially penetrates through the fixing plates 42, and the lithium ion batteries 10 are fixedly connected together through the screw rod, so that the firmness of the battery module 20 is further improved.
In some embodiments, the first barrier 51 and the second barrier 52 are respectively provided with a plurality of first holes 513 and a plurality of second holes 523, so as to improve the circulation of heat in the battery module 20 and improve the heat dissipation performance.
In some embodiments, the first barrier 51 and the second barrier 52 have a certain distance therebetween, so that the bottom of the frame structure 5 is a semi-closed structure, and the heat dissipation performance of the battery module is further improved.
According to the embodiment of the utility model, when the electric core structure 2 extrudes the arc-shaped part 31 due to the action of force, the arc-shaped part 31 is compressed towards the inner surface of the battery shell 1, so that one surface of the arc-shaped part 31, which is close to the inner side of the battery shell 1, is contacted with the elastic supporting seat 12, and the surface of the arc-shaped part 31 is a plane, so that when the lithium ion battery 10 falls or the lithium ion battery 10 expands due to gas generation, a sufficient expansion space can be provided for the lithium ion battery 10, and the lithium ion battery 10 can be prevented from falling, damaging or exploding. On the other hand, the battery module 20 provided by this embodiment, by providing the closed plate on the frame structure 5, not only improves the heat dissipation performance of the battery module 20, but also greatly reduces the weight of the frame structure, and in addition, by providing the first support plate 512 and the second support plate 522, the stability of the battery module 20 is also improved.
In the description of the present invention, it should be noted that the terms "upper, lower, inner and outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected and connected" in the present invention are to be understood broadly, unless otherwise explicitly specified or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. A lithium-ion battery (10), characterized in that the lithium-ion battery (10) comprises: the battery comprises a battery shell (1), a battery cell structure (2), an arc-shaped buffer plate (3) and a fixing groove (4);
the battery comprises a battery shell (1), wherein a first elastic supporting seat (11) and a second elastic supporting seat (12) are respectively arranged on the upper inner surface and the lower inner surface inside the battery shell (1), each fixing groove (4) comprises a U-shaped groove (41) and fixing plates (42) arranged at two ends of the U-shaped groove (41), the fixing grooves (4) penetrate through the battery shell (1) through the fixing plates (42) at the two ends to fix the U-shaped grooves (41) inside the battery shell (1), and the outer surfaces of the U-shaped grooves (41) are abutted to the first elastic supporting seats (11);
the arc-shaped buffer plate (3) comprises an arc-shaped part (31) and flat plates (32) arranged on two sides of the arc-shaped part (31), and the flat plates (32) connect the arc-shaped buffer plate (3) with the inner surface of the battery shell (1); wherein the arc-shaped part (31) and the inner surface of the battery shell (1) form a hollow space, and the second elastic supporting seat (12) is abutted against the arc-shaped part (31);
the battery cell structure (2) is arranged between the arc-shaped buffer plate (3) and the fixing groove (4).
2. The lithium ion battery (10) of claim 1, wherein: be provided with a plurality of rectangular shape hole (311) and a plurality of circular hole (321) on arc buffer board (3), a plurality of rectangular shape hole (311) distribute in array on arc part (31), a plurality of circular hole (321) distribute in array on dull and stereotyped (32) of arc buffer board (3) both sides.
3. The lithium ion battery (10) of claim 1 or 2, characterized in that: the flat plates (32) on the two sides of the arc-shaped buffer plate (3) are connected with the battery shell (1) in a welding, screwing or clamping manner.
4. The lithium ion battery (10) of claim 3, wherein: the arc-shaped buffer plate (3) is of a spring leaf structure.
5. The lithium ion battery (10) of claim 1, wherein: the first elastic supporting seat (11) and the second elastic supporting seat (12) are respectively connected to the upper inner surface and the lower inner surface of the battery shell (1) in a welding, bonding, clamping or screwing mode;
the first elastic supporting seat (11) and the second elastic supporting seat (12) are both in a cubic structure; alternatively, the first and second electrodes may be,
the first elastic supporting seat (11) and the second elastic supporting seat (12) are both springs; alternatively, the first and second electrodes may be,
the first elastic supporting seat (11) and the second elastic supporting seat (12) both comprise a cubic structure and a spring, and the spring is sleeved on the outer side of the cubic structure.
6. A battery module (20), characterized in that the battery module (20) comprises: a frame structure (5), and a plurality of lithium ion batteries (10) according to any one of claims 1 to 5 arranged in the frame structure (5);
the frame structure (5) is formed by enclosing a first baffle (51), a second baffle (52), a third baffle (53) and a fourth baffle (54);
the first baffle (51) and the second baffle (52) are oppositely arranged; a first closing plate (531) and a second closing plate (532) are respectively hinged to one ends of the first baffle plate (51) and the second baffle plate (52) far away from the fourth baffle plate (54), and the first closing plate (531) and the second closing plate (532) are closed to form a third baffle plate (53); the fourth baffle (54) and the third baffle (53) are arranged oppositely;
the first baffle (51) and the second baffle (52) are respectively provided with a plurality of first strip-shaped groove bodies (511) and a plurality of second strip-shaped groove bodies (521), a fixing plate (42) of each lithium ion battery (10) penetrates through the corresponding first strip-shaped groove body (511) and the corresponding second strip-shaped groove body (521) so as to enable the lithium ion battery (10) to be installed into the frame structure (5), wherein the lengths of the first strip-shaped groove bodies (511) and the second strip-shaped groove bodies (521) are equal to the length of the fixing plate (42).
7. The battery module (20) according to claim 6, wherein the first and second baffle plates (51, 52) are provided with first and second support plates (512, 522), respectively, the first and second support plates (512, 522) constituting an L-shape with the first and second baffle plates (51, 52), respectively, by which the plurality of lithium ion batteries (10) are supported.
8. The battery module (20) according to claim 6, wherein the plurality of lithium ion batteries (10) are fixedly mounted in the frame structure (5) through fixing plates (42) of the lithium ion batteries (10), and the plurality of lithium ion batteries (10) are fixedly connected through holes (43) of the fixing plates (42) by using bolts.
9. The battery module (20) according to claim 6, wherein the first baffle (51) and the second baffle (52) are respectively provided with a plurality of first holes (513) and a plurality of second holes (523).
10. The battery module (20) according to claim 6, wherein the first baffle (51) and the second baffle (52) are spaced apart such that the bottom of the frame structure (5) is a semi-enclosed structure.
CN202122385060.8U 2021-09-29 2021-09-29 Lithium ion battery and battery module Active CN216213905U (en)

Priority Applications (1)

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CN202122385060.8U CN216213905U (en) 2021-09-29 2021-09-29 Lithium ion battery and battery module

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Application Number Priority Date Filing Date Title
CN202122385060.8U CN216213905U (en) 2021-09-29 2021-09-29 Lithium ion battery and battery module

Publications (1)

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CN216213905U true CN216213905U (en) 2022-04-05

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